pollen

pollen defined in 1951 year

pollen - pollen;pollen - Microspores of seed plants (Gymnospermae and Angio-spermae) each containing a greatly reduced male gametophyte. Carried by wind or insects, or more rarely by water, to ovules (Gymnospermae) or to the stigmas of the carpel (Angiospermae), where they germinate with production of pollen tubes carrying male nuclei to eggs within ovules.